package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * @Title: DishController
 * @Author 贾金博
 * @Package com.sky.controller.admin
 * @Date 2024/3/25 18:43
 * @description: 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j

public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;
    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品: {}", dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //清空缓存
        String key = "dish_" + dishDTO.getCategoryId();
        clearCache(key);// 通用操作
        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询: {}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }


    /**
     * 菜品批量删除
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    // 加上@RequstParam 之后 会动态解析字符串
    public  Result delete(@RequestParam List<Long> ids) { // 比如 1, 2, 3, 4 这样的 类似于字符串 通过逗号进行分割
        log.info("菜品批量删除: {}", ids);
        dishService.deleteBatch(ids);
        //清空缓存
        //讲所有的菜品缓存数据给清空掉 dish_开头的
        clearCache("dish_*");
        return Result.success();
    }

    @GetMapping("{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品: {}", id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品: {}", dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //直接清空全部的缓存数据
        clearCache("dish_*");

        return Result.success();
    }

    /**
     * 修改菜品的售卖状态
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("修改菜品的售卖状态")
    public Result status(@PathVariable int status, Long id) {
        dishService.status(status, id);
        //清空缓存
        clearCache("dish_*");
        return Result.success();
    }


    /**
     * 根据菜品分类id去查询菜品
     * @param dish
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据菜品分类id去查询菜品")
    public Result<List<Dish>> list(Dish dish) {
        log.info("根据菜品分类id去查询菜品: {}", dish);
        List<Dish> dishes = dishService.findDishesByCategoryId(dish);
        return Result.success(dishes);
    }

    /**
     * 清理缓存数据
     * @param pattern
     */
    private void clearCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }

}
